BGS mineralogy and petrology collection record

Sample number	E63100; COLLNOKB100;
Sample Donor	Not entered
Rock name	Metadiorite. 'Original entry: Microdiorite'
Stratigraphy	Not entered
Comments	Intrusion in Nant Ffrancon Fm.(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Fine-grained
Locality details	Pen Maen Mawr Quarry
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 6980 7560
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.